/* RGBA */
static void BlendRGBAI420( filter_t *, picture_t *, picture_t *, picture_t *,
int, int, int, int, int );
+static void BlendRGBAYUVPacked( filter_t *, picture_t *, picture_t *,
+ picture_t *, int, int, int, int, int );
static void BlendRGBAR16( filter_t *, picture_t *, picture_t *, picture_t *,
int, int, int, int, int );
static void BlendRGBAR24( filter_t *, picture_t *, picture_t *, picture_t *,
* We could try to use a chroma filter if we can't. */
int in_chroma = p_filter->fmt_in.video.i_chroma;
int out_chroma = p_filter->fmt_out.video.i_chroma;
- if(
- ( ( in_chroma != VLC_FOURCC('Y','U','V','A') &&
- in_chroma != VLC_FOURCC('Y','U','V','P') ) ||
+ if( ( in_chroma != VLC_FOURCC('Y','U','V','A') &&
+ in_chroma != VLC_FOURCC('Y','U','V','P') &&
+ in_chroma != VLC_FOURCC('R','G','B','A') ) ||
( out_chroma != VLC_FOURCC('I','4','2','0') &&
out_chroma != VLC_FOURCC('Y','U','Y','2') &&
out_chroma != VLC_FOURCC('Y','V','1','2') &&
out_chroma != VLC_FOURCC('R','V','1','6') &&
out_chroma != VLC_FOURCC('R','V','2','4') &&
out_chroma != VLC_FOURCC('R','V','3','2') ) )
- &&
- ( ( in_chroma != VLC_FOURCC('R','G','B','A') ) ||
- ( out_chroma != VLC_FOURCC('I','4','2','0') &&
- out_chroma != VLC_FOURCC('Y','V','1','2') &&
- out_chroma != VLC_FOURCC('R','V','1','6') &&
- out_chroma != VLC_FOURCC('R','V','2','4') &&
- out_chroma != VLC_FOURCC('R','V','3','2' ) ) )
- )
{
return VLC_EGENERIC;
}
i_x_offset, i_y_offset,
i_width, i_height, i_alpha );
return;
+ case VLC_FOURCC('Y','U','Y','2'):
+ case VLC_FOURCC('U','Y','V','Y'):
+ case VLC_FOURCC('Y','V','Y','U'):
+ BlendRGBAYUVPacked( p_filter, p_dst, p_dst_orig, p_src,
+ i_x_offset, i_y_offset,
+ i_width, i_height, i_alpha );
+ return;
case VLC_FOURCC('R','V','2','4'):
case VLC_FOURCC('R','V','3','2'):
BlendRGBAR24( p_filter, p_dst, p_dst_orig, p_src,
return;
}
+
+static void BlendRGBAYUVPacked( filter_t *p_filter, picture_t *p_dst_pic,
+ picture_t *p_dst_orig, picture_t *p_src,
+ int i_x_offset, int i_y_offset,
+ int i_width, int i_height, int i_alpha )
+{
+ int i_src1_pitch, i_src2_pitch, i_dst_pitch, i_src_pix_pitch;
+ uint8_t *p_dst, *p_src1, *p_src2;
+ uint8_t *p_trans;
+ int i_x, i_y, i_pix_pitch, i_trans;
+ vlc_bool_t b_even = !((i_x_offset + p_filter->fmt_out.video.i_x_offset)%2);
+ int i_l_offset = 0, i_u_offset = 0, i_v_offset = 0;
+ uint8_t y, u, v;
+
+ if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','U','Y','2') )
+ {
+ i_l_offset = 0;
+ i_u_offset = 1;
+ i_v_offset = 3;
+ }
+ else if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('U','Y','V','Y') )
+ {
+ i_l_offset = 1;
+ i_u_offset = 0;
+ i_v_offset = 2;
+ }
+ else if( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','V','Y','U') )
+ {
+ i_l_offset = 0;
+ i_u_offset = 3;
+ i_v_offset = 1;
+ }
+
+ i_pix_pitch = 2;
+ i_dst_pitch = p_dst_pic->p->i_pitch;
+ p_dst = p_dst_pic->p->p_pixels + i_x_offset * i_pix_pitch +
+ p_filter->fmt_out.video.i_x_offset * i_pix_pitch +
+ p_dst_pic->p->i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+
+ i_src1_pitch = p_dst_orig->p[Y_PLANE].i_pitch;
+ p_src1 = p_dst_orig->p->p_pixels + i_x_offset * i_pix_pitch +
+ p_filter->fmt_out.video.i_x_offset * i_pix_pitch +
+ p_dst_orig->p->i_pitch *
+ ( i_y_offset + p_filter->fmt_out.video.i_y_offset );
+
+ i_src_pix_pitch = p_src->p->i_pixel_pitch;
+ i_src2_pitch = p_src->p->i_pitch;
+ p_src2 = p_src->p->p_pixels +
+ p_filter->fmt_in.video.i_x_offset * i_src2_pitch +
+ p_src->p->i_pitch * p_filter->fmt_in.video.i_y_offset;
+
+ i_width = (i_width >> 1) << 1; /* Needs to be a multiple of 2 */
+
+#define MAX_TRANS 255
+#define TRANS_BITS 8
+
+ /* Draw until we reach the bottom of the subtitle */
+ for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src2_pitch,
+ p_dst += i_dst_pitch, p_src1 += i_src1_pitch,
+ p_src2 += i_src2_pitch )
+ {
+ /* Draw until we reach the end of the line */
+ for( i_x = 0; i_x < i_width; i_x++, b_even = !b_even )
+ {
+#define R ( p_src2[i_x * i_src_pix_pitch + 0] )
+#define G ( p_src2[i_x * i_src_pix_pitch + 1] )
+#define B ( p_src2[i_x * i_src_pix_pitch + 2] )
+ i_trans = ( p_src2[i_x * i_src_pix_pitch + 3] * i_alpha ) / 255;
+ if( !i_trans )
+ {
+ /* Completely transparent. Don't change pixel */
+ }
+ else if( i_trans == MAX_TRANS )
+ {
+ /* Completely opaque. Completely overwrite underlying pixel */
+ rgb_to_yuv( &y, &u, &v, R, G, B );
+ p_dst[i_x * 2 + i_l_offset] = y;
+
+ if( b_even )
+ {
+ p_dst[i_x * 2 + i_u_offset] = u;
+ p_dst[i_x * 2 + i_v_offset] = v;
+ }
+ }
+ else
+ {
+ /* Blending */
+ rgb_to_yuv( &y, &u, &v, R, G, B );
+ p_dst[i_x * 2 + i_l_offset] = ( (uint16_t)y * i_trans +
+ (uint16_t)p_src1[i_x * 2 + i_l_offset] * (MAX_TRANS - i_trans) )
+ >> TRANS_BITS;
+
+ if( b_even )
+ {
+ p_dst[i_x * 2 + i_u_offset] = ( (uint16_t)u * i_trans +
+ (uint16_t)p_src1[i_x * 2 + i_u_offset] * (MAX_TRANS - i_trans) )
+ >> TRANS_BITS;
+ p_dst[i_x * 2 + i_v_offset] = ( (uint16_t)v * i_trans +
+ (uint16_t)p_src1[i_x * 2 + i_v_offset] * (MAX_TRANS - i_trans) )
+ >> TRANS_BITS;
+ }
+ }
+ }
+ }
+
+#undef MAX_TRANS
+#undef TRANS_BITS
+
+ return;
+}